Sorry Danny but I have to disagree. Two aircraft departing on intersecting runways controlled by two separate persons on different frequencies has to be less safe then other options available. Many in the industry would consider there is no compromise with flight safety, maybe they do not live in the real world. In this case neither pilot could see the other until far too late, and neither pilot was privy to the clearance being given to the other. As you remember the Pan Am KLM accident, all the crews knew what was going on, they were all on the same freq. The sad thing is one of them choose to ignore the doubts of his F/O. Perhaps if there had of been a collision your assessment that the procedures which continue at BOS and many other airports, not just in the USA, would be somewhat different. We work in an environment where there are multiple redundancies, where crew actions are continually monitored, engineering procedures are cross checked. In this case I would like to ask who was monitoring the two controllers. Human error did take place but there should be procedures in place which will prevent such an incident from happening. This was not the case. The system failed.